monaryРartery diameter widening was significantly higher than the SSc-nonPAH groupР(P <0.05).The patients with SSc-PAH combined with pulmonary interstitialРlesions were more severe than SSc-nonPAH group.Р 4.The scores of chest HRCT score (12,20) VS. (9,12), P <0.05 in SSc-PAHРgroup were higher than those in SSc-nonPAH group.Р 5.53 patients with SSc-PAH were divided into mild, moderate and severeРgroups. The median and moderate course of mild to moderate groupР(52VS.34.5VS. 94 months, P <0.05) were significantly shorter in the severeРgroup. The incidence of muscle involvement in moderate and moderate groupsРwas higher than that in mild and severe groups (60.71% vs.23.53%, 0%, PР<0.01). (CRP), creatine kinase (CK) levels (17.15VS.11.6,5.26mg / L, 185VS.95,РРР 6